net_shell/ssh/
mod.rs

1pub mod local;
2
3use anyhow::{Context, Error, Result};
4use ssh2::Session;
5use std::fs;
6use std::io::{BufRead, BufReader};
7use std::net::TcpStream;
8use std::path::Path;
9use std::sync::Arc;
10use std::sync::mpsc;
11use std::time::Duration;
12use tokio::sync::mpsc as tokio_mpsc;
13use tracing::info;
14
15use crate::models::{ExecutionResult, SshConfig, OutputEvent, OutputType, OutputCallback};
16use crate::Step;
17use crate::vars::VariableManager;
18use crate::ExtractRule;
19
20/// SSH执行器
21pub struct SshExecutor;
22
23impl SshExecutor {
24    /// 通过SSH执行脚本（支持实时输出）
25    pub fn execute_script_with_realtime_output(
26        global_scripts:Arc<Vec<String>>,
27        server_name: &str,
28        ssh_config: &SshConfig, 
29        step: &Step,
30        pipeline_name: &str,
31        step_name: &str,
32        output_callback: Option<OutputCallback>,
33        mut variable_manager: VariableManager,
34        extract_rules: Option<Vec<ExtractRule>>
35    ) -> Result<ExecutionResult> {
36        info!("Connecting to {}:{} as {}", ssh_config.host, ssh_config.port, ssh_config.username);
37
38        // 只用step.script作为脚本路径，不做参数处理
39        let script_path = step.script.as_str();
40
41        // 读取本地脚本内容并替换变量
42        let script_content = std::fs::read_to_string(script_path)
43            .context(format!("Failed to read script file: {}", script_path))?;
44
45        let mut gloabl_script_content = global_scripts.iter()
46        .map(|v|std::fs::read_to_string(v).context(format!("read file:[{}]", v)))
47        .fold(Ok("".to_string()), |p:Result<String>,v|{
48            if p.is_err(){
49                return p;
50            }
51
52            if v.is_err(){
53                return Err(Error::msg(format!("{:?}", v.err())));
54            }
55            let content = v.unwrap();
56
57            let mut s = p.unwrap_or_default();
58
59            s.push_str("\n");
60            s.push_str(&content);
61
62            return  Ok(s.clone());
63        })?;
64
65        gloabl_script_content.push_str("\n");
66        gloabl_script_content.push_str(&script_content);
67
68        let script_content = gloabl_script_content.clone();
69
70        variable_manager.set_variable("ssh_server_name".to_string(), server_name.to_string());
71        variable_manager.set_variable("ssh_server_ip".to_string(), ssh_config.host.to_string());
72
73        let script_content = variable_manager.replace_variables(&script_content);
74
75        // 设置连接超时
76        let ssh_timeout_seconds = ssh_config.timeout_seconds.unwrap_or(3);
77        let ssh_timeout_duration = Duration::from_secs(ssh_timeout_seconds);
78
79        // 建立TCP连接（带严格超时）
80        let tcp = connect_with_timeout(&format!("{}:{}", ssh_config.host, ssh_config.port), ssh_timeout_duration)
81            .context("Failed to connect to SSH server")?;
82
83        let timeout_duration = Duration::from_secs(step.timeout_seconds.unwrap_or(30));
84        
85        // 设置TCP连接超时
86        tcp.set_read_timeout(Some(timeout_duration))
87            .context("Failed to set read timeout")?;
88        tcp.set_write_timeout(Some(timeout_duration))
89            .context("Failed to set write timeout")?;
90        tcp.set_nodelay(true)
91            .context("Failed to set TCP nodelay")?;
92
93        // 创建SSH会话
94        let mut sess = Session::new()
95            .context("Failed to create SSH session")?;
96        
97        sess.set_tcp_stream(tcp);
98        
99        // 设置SSH会话超时（使用步骤级别的超时，如果没有则使用默认值）
100        let session_timeout_seconds = step.timeout_seconds.unwrap_or(30);
101        let session_timeout_duration = Duration::from_secs(session_timeout_seconds);
102        sess.set_timeout(session_timeout_duration.as_millis() as u32);
103        
104        // SSH握手（带超时）
105        sess.handshake()
106            .context(format!("SSH handshake failed: timeout {} s", ssh_timeout_seconds))?;
107
108        info!("SSH handshake completed, starting authentication");
109
110        // 认证（带超时）
111        let auth_result = if let Some(ref password) = ssh_config.password {
112            sess.userauth_password(&ssh_config.username, password)
113                .context("SSH password authentication failed")
114        } else if let Some(ref key_path) = ssh_config.private_key_path {
115            sess.userauth_pubkey_file(&ssh_config.username, None, Path::new(key_path), None)
116                .context("SSH key authentication failed")
117        } else {
118            Err(anyhow::anyhow!("No authentication method provided"))
119        };
120
121        auth_result?;
122        info!("SSH authentication successful");
123
124        // 打开远程shell
125        let mut channel = sess.channel_session()
126            .context("Failed to create SSH channel")?;
127        channel.exec("bash")
128            .context("Failed to exec remote shell")?;
129
130        // 把脚本内容写入远程shell的stdin
131        use std::io::Write;
132        channel.write_all(script_content.as_bytes())
133            .context("Failed to write script to remote shell")?;
134        channel.send_eof()
135            .context("Failed to send EOF to remote shell")?;
136
137        // 创建通道用于实时输出
138        let (tx, mut rx) = tokio_mpsc::channel::<OutputEvent>(100);
139        let output_callback = output_callback.map(|cb| Arc::new(cb));
140
141        // 在单独的线程中处理实时输出
142        let server_name = server_name.to_string();
143        let _step_name = step_name.to_string();
144        let pipeline_name = pipeline_name.to_string();
145        let output_callback_clone = output_callback.clone();
146        
147        let output_handle = std::thread::spawn(move || {
148            while let Some(event) = rx.blocking_recv() {
149                if let Some(callback) = &output_callback_clone {
150                    callback(event);
151                }
152            }
153        });
154
155        // 读取stdout和stderr
156        let mut stdout = String::new();
157        let mut stderr = String::new();
158        let start_time = std::time::Instant::now();
159
160        // 实时读取stdout
161        let stdout_stream = channel.stream(0);
162        let mut stdout_reader = BufReader::new(stdout_stream);
163        let mut line = String::new();
164        
165        while stdout_reader.read_line(&mut line)? > 0 {
166            let content = line.clone();
167            stdout.push_str(&content);
168            
169            // 发送实时输出事件
170            let event = OutputEvent {
171                pipeline_name: pipeline_name.clone(),
172                server_name: server_name.clone(),
173                step: step.clone(), // 传递完整的Step对象
174                output_type: OutputType::Stdout,
175                content: content.trim().to_string(),
176                timestamp: std::time::Instant::now(),
177                variables: variable_manager.get_variables().clone(),
178            };
179            
180            if tx.blocking_send(event).is_err() {
181                break;
182            }
183            
184            line.clear();
185        }
186
187        // 实时读取stderr
188        let stderr_stream = channel.stderr();
189        let mut stderr_reader = BufReader::new(stderr_stream);
190        line.clear();
191        
192        while stderr_reader.read_line(&mut line)? > 0 {
193            let content = line.clone();
194            stderr.push_str(&content);
195            
196            // 发送实时输出事件
197            let event = OutputEvent {
198                pipeline_name: pipeline_name.clone(),
199                server_name: server_name.clone(),
200                step: step.clone(), // 传递完整的Step对象
201                output_type: OutputType::Stderr,
202                content: content.trim().to_string(),
203                timestamp: std::time::Instant::now(),
204                variables: variable_manager.get_variables().clone(),
205            };
206            
207            if tx.blocking_send(event).is_err() {
208                break;
209            }
210            
211            line.clear();
212        }
213
214        // 等待通道关闭
215        drop(tx);
216        if let Err(e) = output_handle.join() {
217            eprintln!("Output handler thread error: {:?}", e);
218        }
219
220        channel.wait_close()
221            .context("Failed to wait for channel close")?;
222
223        let exit_code = channel.exit_status()
224            .context("Failed to get exit status")?;
225
226        let execution_time = start_time.elapsed().as_millis() as u64;
227        info!("SSH command executed with exit code: {}", exit_code);
228
229        // 创建执行结果
230        let execution_result = ExecutionResult {
231            success: exit_code == 0,
232            stdout,
233            stderr,
234            script: step.script.to_string(),
235            exit_code,
236            execution_time_ms: execution_time,
237            error_message: None,
238        };
239
240        // 提取变量
241        if let Some(rules) = extract_rules {
242            if let Err(e) = variable_manager.extract_variables(&rules, &execution_result) {
243                info!("Failed to extract variables: {}", e);
244            }
245        }
246
247        Ok(execution_result)
248    }
249
250}
251
252/// 工具函数：带超时的TCP连接
253fn connect_with_timeout(addr: &str, timeout: Duration) -> std::io::Result<TcpStream> {
254    let (tx, rx) = mpsc::channel();
255    let addr = addr.to_string();
256    let error_message = format!("connect to {} timeout {} s", addr, timeout.as_secs());
257    std::thread::spawn(move || {
258        let res = TcpStream::connect(addr);
259        let _ = tx.send(res);
260    });
261    rx.recv_timeout(timeout).unwrap_or_else(|_| Err(std::io::Error::new(std::io::ErrorKind::TimedOut, error_message)))
262}
net_shell/ssh/mod.rs

net_shell/ssh/
mod.rs
